This is a discussion on loud transmission issue? within the Transmission & AWD forums, part of the Tech & Modifying & General Repairs category; so im not totally sure if my car has always been like this but im almost positive the gear box ...

loud transmission issue?

so im not totally sure if my car has always been like this but im almost positive the gear box has gotten louder.
my 02 wrx has 120k and has no issues shifting into any gears, but when driving its as if i can hear the gears spinning, not really a whine but a whirring sound as if you had the gears out of the car and spun them. its only really audible from around 2 or 3 gears up. the noise gets louder as the speed climbs.

for the hell of it i revved the engine in neutral and no sound at all. im gunna check the fluid after school and possibly change the fluid when i get a chance but are there any other suggestions as to what this could be?

to add i just checked the fluid looks good same as a couple of weeks ago.

however i did realize i didnt notice this sound until AFTER i put my new wheels on a couple days ago
theyre 18" rotas with new all season tires, although held up to the oem wheels there isnt much of a size difference, could this still affect something??

to add i just checked the fluid looks good same as a couple of weeks ago.

however i did realize i didnt notice this sound until AFTER i put my new wheels on a couple days ago
theyre 18" rotas with new all season tires, although held up to the oem wheels there isnt much of a size difference, could this still affect something??

Did you get an alignment? I agree that the A/S tires could be making more sound than you are used to. What specs are on your wheels/tires?

if i shift into neutral say doing 30 and the car slows down the pitch also lowers and the sounds dims down as my speed falls (the higher the speed the louder), and alright ill have to make a checklist for now, i just wanted to make sure my differential wasnt going or something.

the tires are 235/40 r18 the only reason i wasnt sure about the tires is because it sounds like it was coming from below the shifter but i guess the sound could carry
i just replaced the diff fluid to be safe(looked used but slightly new)

on another note i noticed the (what i believe) rear differential bushings? to be very worn down, when i was trying to crank up to remove the drain bolt that little bracket moved back and forth a lot and the bracket was making a squeaking sound. can anyone tell from my description if those are the correct bushings so i can replace them. -thanks for all the input!

it might be a little bit but i will! ive decided to chalk the gearset being loud as the trans being loud, new trans fluid and new rear diff fluid didnt make a difference and the car still shifts smooth.
the rear diff bracket squeaks when i wiggle it so whenever i can get around to those im hoping that will fix my squeaking issue

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